Gemma and Terry must solve the murder of a wedding guest before they can say 'I do'.
| Name | Type | Role | |
|---|---|---|---|
| Jason Cook | Writer | ||
| Ellen Thomas | Guest Star | Nanny | |
| Youssef Kerkour | Guest Star | Bob | |
| Mia Thompson | Guest Star | Keira | |
| Layla Cook | Guest Star | Caitlin | |
| Sally Phillips | Guest Star | Alex | |
| Joe Tracini | Guest Star | Glen | |
| Sherrie Hewson | Guest Star | Patricia | |
| Claire Skinner | Guest Star | Kerry | |
| Philip Jackson | Guest Star | Phil | |
| Callum Sterling | Guest Star | Yuri | |
| Rich Keeble | Guest Star | Priest | |
| Ed Bye | Director |